Possible Indicators of Aging in Oil-Filled Transformers Part 1: Measurements

被引：3
作者：
Birlasekaran, S. [1 ]
Ledwich, G. [1 ]
机构：
[1] Queensland Univ Technol, Brisbane, Qld 4001, Australia
来源：
IEEE ELECTRICAL INSULATION MAGAZINE | 2010年 / 26卷 / 01期
关键词：
aging; condition indicator; transformer; degradation model; failure rate; expected life; degree of polymerization; conduction and displacement currents; partial discharge; HV POWER EQUIPMENT; DIELECTRIC-SPECTROSCOPY; FREQUENCY-DOMAIN; ASSET-MANAGEMENT; TIME;
D O I：
10.1109/MEI.2010.5383925
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The possible indicators of aging in oil-filled transformers have been reported. Degradation model development using basic research, and remaining life estimation, is essential for modern electrical engineering aging-asset management programs. Aging in cellulose paper insulation can be related to a decrease in tensile strength. Other degradation products in the oil such as acids, sludge, dissolved gases, water, and other polar and phenolic compounds are also being investigated as possible indicators of aging. Ambient temperature was measured by a thermometer, and the higher temperature was estimated from the increase in the resistance of the transformer HV winding above its ambient value. Different localized defects generate HF PD pulses, which occur randomly in each 20-ms cycle of the applied voltage. It may also be possible to apply such measurements to generators, motors, and circuit breakers.
引用
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页码：26 / 32
页数：7
相关论文
共 22 条
[1]  
[Anonymous], 1991, C57113 IEEE
[2]  
[Anonymous], 2018, IEC 60076-7-2018
[3]   Relaxation studies on power equipment [J].
Birlasekaran, S ;
Yu, XZ .
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2003, 10 (06) :1061-1077
[4]  
BIRLASEKARAN S, 2009, P 9 INT C PROP APPL, P301
[5]  
BLANC R, 2008, CIGRE PAR C
[6]  
*CIGRE TASK FORC, 2002, 211 CIGRE TASK FORC
[7]  
*CIGRE TASK FORC, 2007, 323 CIGRE TASK FORC
[8]  
CIGRE Working Group A2.18, 2003, 227 CIGRE WORK GROUP
[9]  
DAVYDOV V, 2006, P CIGRE TRANSF TECHN
[10]  
Gill P., 2009, ELECT POWER EQUIPMEN, V2nd
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